The American Academy of Allergy, Asthma & Immunology (AAAAI) has issued warning regarding sinusitis. Doctors say that that if stuffy nose, headache and other symptoms of cold persist for more than two weeks, it may be sinusitis.

Sinusitis is generally initiated by a viral common cold affecting the nose. The viruses can spread to the sinuses and pave way for a secondary bacterial infection and subsequent acute sinusitis. Its major symptoms are a green or gray nasal discharge, foul tasting post-nasal drip, facial pain/pressure or light fever.

A new study conducted by the Canadian researchers show that too much thinking can make you fat. Researchers found that the heavy thinkers consumed more calories.

The Telegraph reported that Dr Angelo Tremblay supervised the research team and after each of three tasks, the research team measured the spontaneous food intake of 14 students. The first task was relaxing in a sitting position, the second was reading and summarizing a text and the last was completing a series of memory, attention and vigilance tests on the computer.

A latest research conducted at the University Laval in Quebec has revealed that excessive thinking can add excess pounds.

The researchers observed the food intake of 14 students after they were assigned three different types of tasks. These included relaxing in a sitting position, reading and summarizing a text, and finally, completing a series of memory, attention, and vigilance tests on the computer.

It was found that despite the low energy cost of intellectual work, students consumed 203 more calories after summarizing a text, and 253 more calories after the computer tests as compared to the consumption of calories after relaxing in the sitting position.

Scientists have developed a robot radiotherapy machine known as Cyberknife to treat cancer. Cyberknife has various advantages over traditional radiotherapy devices.

In case of Cyberknife only three sittings of powerful radiations are required as compared to 20 sessions of low-dose radiations required in traditional treatment. The recovery time is also very less in this case.

Tooth decay increases in children during the holiday season. The reason behind the condition is an excess of long-lasting candies, gooey frosted cookies, hot chocolate and chewy fudge.

But the age old saying of keeping teeth clean would keep all tooth decay at bay, would work not only at a particular time but throughout the year in preventing tooth decay and cavities.

Recent research has revealed that mood of a person is strongly affected by the people around him. Research team led by Dr Nicholas Christakis, a sociologist at Harvard Medical School, and including Professor Fowler analyzed 53,228 social connections between 5,124 individuals over time.

Researchers said that how grumpy people feel can be influenced not only by the state of mind of those closest to us, but also by friends of friends that we have never met like ripples from "pebbles thrown into a pond".